Dynamite-heater.



k N QQ A'. H. VNNAUKER. DYNAMITE HEATER. APPLIoATIoN FILED AUG. 7,1908.

929,902. Patented Aug.3,1909.

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t TENT FFCE.

ALEXANDER HARLAND VANNAUKER, GF HAZLETON, lENNSYLVANIA.

new and useful Eynainite-l'leater, of which the following is a specincation.

This invention relates o device class einployeri tor heating dyn explosure frein ahnerin ally high temperature.

further object of the invention is to provide a dynamite oven that is practically surrounded hy a Water chainher and is provided with dynainite supporting shelves of such nature as to prevent the sticks of dynamite troni coniing in contact with the Walls ci the oven.

lilith these and other objects in view, Will more fully hereinafter appear, the invention consists in certain novel features of con* struction and arrangement oi parts, hereinl after fully described,illustrated in the accorairnilar erals oi" reference ernployed to indicate corresponding 1parts throughout the several gures of the orar-.1 ings.

The inain casing 10 ci' the heater is preierahly of the generaily rectangular shape shown, although in Sonie cases it inay he of circular or elliptical forni. The top oi the casing is provided with ou .vardly extending horizontal flange il and at the iront is an opening l2 which may he closed oy suitable door 13, the door being mounted on hinges in any suitable manner to perniit opening to the interior for the insertion or removal of the dynamite. rEhe rear portion of the casing tapers troni the opposite ends and the rear to form a combustion or heating Application led August 7, 1908.

Serial No. 447,464.

space l5, the loottorn` of which is arranged for the reception oic a heating device 16 oi any suite. c character, that shouf'n in the present instance lacing the forni or" an oil font having; a plurality of burners. Access niay a had to the heating device hy opening the door 2G and air for the supported conv hustion is allowed to enter through numerous Berici-ations i'orined in the Wall oi the casat point near the bottoni thereof. The n, hole, is s -snorted on suitable ,ses or d `rds which suitahlv Q e braced and connected in order to properly in the Weight of the heater and its ar casing 26 Qro- 27 that rest on the Wall ci the casing 6 ening in alineinent Witl i e casing 2t constitutes the outer Walls of a Water containing tank and this casing is spaced iroin tne rear Wall and the opoosite end Walls ci the main casing l() in order to provide clear space Afor the circulation ci the products of' combustion from the heatir device, and after such products ci ccinhust. n inipinge against the outer surfaces oi the Casin 2@ and travel up the side and hack spa-ce oetiveen the casings l@ and 25, they Will escape through a nurnlfer oi discharge openings 23 which extend around the upper portion of the end and rear Walls of the casinf". Such discharge ope g are preicral u l .-distantly spaced so as to evenly distribute the 'products of' combustion over the entire surface of the Water tanlr cas- 26 exposed to such oroducts ol' Cornhustion.

Suspended Within and forming the inner Walls of the Water tanlr is an oven or heatin chamber 30 the Water in the tank occupying the spaces between the side walls, the hach Walls and the bottoni Walls of the oven and casing 26. m

flanges lil is provided the opening l2.

,i ius the water .vithin the tanli serves as a Water aclret for the oven on the sides, hack and the bottoni. ri`he oven Walls at the top are provideo with a horizontally disposed ilange El, this flange resting` on the flange 27 of the Water tanlr casing 26 and all three ilanges are then firrnly riveted together :tor the purpose of forming a tight joint. The iront oi' the oven is provided with an opening nient -with the opening` l2 of the casing l0, and the three 'walls Which come together at of the saine area as and matching or in alinethe opening, that is to say the wall of the steam casing, of the water tank casing, and of the oven, are all securely riveted or otherwise fastened together.

The oven 30 is designed. to contain the dynamite to beheated or thawed, and heat is transmitted thereto through the body of water in the tank or water jacket while care is taken in the construction of the device that the bottom, rear and end walls of the oven shall be spaced such a distance from the corresponding walls of the casing 26 exposed to the direct action ol" the products of comlbustion, that undue heating of the walls of the oven cannot occur.

Arranged against the inner faces of the end walls oi' the oven are vertical straps 33 having` top and bottom flanges 34 which are riveted or otherwise secured to the top and bottom of the oven. From these straps extend shelf supporting hooks 85 which are arranged to receive wire shelves 3G. Each shelf is formed of wire twisted in such manner as to form an approximately rectangular frame the two ends of which rest on the hooks 35, and the end members of the frame are united by cross bars 36 on which the sticks of dynamite may rest. The rear wall of the frame is bent upward to form a bar 37 as shown more clearly in Fig. 3 and this bar is spaced a considerable distance from the rear wall of the oven and forms a stop for limiting inward movement of the dynamite sticks when the latter are being placed in position so that it is impossible to force the sticks inward to such an extent as to bring them in contact with the rear wall of the oven and thus expose the same to a dangerous degree or" heat. The vertically turned bills of the hooks 35 perform the same function with respect to the side or end walls of the oven and prevent the sticks of dynamite from coming into contact with such side or end walls so that around the three walls ol2 the oven there is a clear space to permit the free circulation or air.

With a heater constructed in accordance with this invention it is practically impossible to expose the dynamite to a dangerous degree of temperature and accidental contact between the sticks of dynamite and overheated walls of the receptacle is positively prevented..

What is claimed is 1. In a dynamite heater, a casing` provided with draft openings and forming a combustion chamber, the front wall of the casing having an opening, a closed water tank having` its bottom portion below said opening, the rear and end walls of the tank being,T spaced from the similar walls of the casing to form narrow rear and end. fines for the products of combustion, an oven suspended within and forming' the inner wall of tank, said oven having;V a front openingA in alinement with the opening' of the casing, the bottom, rear and end walls of the oven being;` spaced. from the similar walls of the tank, and a door forming a closure for the openings.

2. ln a dynamite heater, an oven or receivingT chamber, and a plurality of superposed racks arranged therein for the reception of the dynamite, each rack having" independent means iior preventingn contact between the stick of dynamite and the rear wall oi the oven.

3. In a dynamite heater, an oven or receivingr chamber, and a plurality of independently movable racks disposed therein, the rear portion of each rack being provided with a guard.

2l. A dynamite heater includingP an oven or receivingd chamber, hooks projecting;r from the end walls of the chamber, racks or shelves arranged on said hooks and having; upwardly extended rear edges to prevent contact between the dynamite and the rear wall oi the oven, the hooks serving," as side guards to prevent contact of the dynamite with the end walls of the oven.

5. ln a dynamite heater, an oven, straps secured therein and provided with a plurality of hooks, wire racks or shelves carried by the hooks, the rear bars of said racks or shelves being' bent upward to form Lguards, and the bills of the hook serving` as side guards to prevent contact between the dynamite and the walls oi' the oven.

ln testimony that l claim the foregoing; as my own, l have hereto affixed my signature in the presence olf' two witnesses.

ALEXANDER HARLAND VANNUKER. vrlvitnessesz A. HARLAND VANNAUKER, Jr., GEORGE HAnnrsoN VANNAUKER. 

